2. Don't do too much exercise, lift it lightly, and the total number of groups should be small, so "overload" is appropriate.

3. In practice, measures of "preventing injury" and "preventing rigidity" should be strengthened. Therefore, we should pay attention to teaching correct skills, doing adequate warm-up exercises, step by step, from light to heavy. It is necessary to fully lengthen muscles and joints and do a good job of relaxation and psychological adjustment.

4. Ensure adequate nutrition in the diet and supplement high-protein foods, such as milk, eggs, fish, lean meat and enough fruits and vegetables. Eat less sugar and salt, and be careful not to eat too late and too full for dinner. Children and adolescents with "bean sprouts" should pay attention to proper muscle strength training, while "chubby" must be properly trained to lose weight under the supervision of their parents. Don't like them too much, and meet all their dietary requirements without restraint.

5, children's fitness training, should consider the characteristics of children, pay attention to lively, training should be accompanied by lively, beautiful and beautiful music, so that the exercise effect is good and lasting.

6, children's fitness training should pay attention to the habit of "developing" exercise, such as paying attention to chest in daily life and paying attention to straight back in class. This can exercise trunk muscle strength, and the back will not bow in adulthood and old age.